Silicate ores

[Ismael123]

Hi everyone.
I have some thoughts and questions related to an ore.
It's an iron rich ore with silicates and sulfides.
Sulfides are au enriched. But pgms are isolated in silicates.
I want dissolve/break the silicate to release pgms. (Thought)
How silicates can be dissolved?
We found a most suitable process was to fuse with naoh, but it not allow us to go to production scale and also get silica gel issue when using acid after naoh fusion.

 

[Yggdrasil]

Hi everyone.
I have some thoughts and questions related to an ore.
It's an iron rich ore with silicates and sulfides.
Sulfides are au enriched. But pgms are isolated in silicates.
I want dissolve/break the silicate to release pgms. (Thought)
How silicates can be dissolved?
We found a most suitable process was to fuse with naoh, but it not allow us to go to production scale and also get silica gel issue when using acid after naoh fusion.

Welcome.
You know this because you have had it assayed I presume?
Was the purpose of the fusion only to break the Silicates?
How about fusion with a added collector metal?
Or straight smelting?

 

[Ismael123]

Welcome.
You know this because you have had it assayed I presume?
Was the purpose of the fusion only to break the Silicates?
How about fusion with a added collector metal?
Or straight smelting?

Yes, it's been assayed.

Smelting need some precise tamps and equipment, that is not available.

Not try fusion with collected metal.

Fusion is to break iron and silicates. As ore is 89 percent iron.

 

[Yggdrasil]

Yes, it's been assayed.

Smelting need some precise tamps and equipment, that is not available.

Not try fusion with collected metal.

Fusion is to break iron and silicates. As ore is 89 percent iron.

How much ore do you have access to?
How is it assayed?

 

[Yggdrasil]

Yes, it's been assayed.

Smelting need some precise tamps and equipment, that is not available.

Not try fusion with collected metal.

Fusion is to break iron and silicates. As ore is 89 percent iron.

I recommend reading this whole thread!

https://goldrefiningforum.com/threa...le-read-this-before-you-post-about-ore.33333/

 

[nickvc]

As far as I can find there are no known precious metals near your shown location so if you are actually there make sure your assay is worth the paper it’s printed on.

 

[Ismael123]

How much ore do you have access to?
How is it assayed?

It's been more than 10 ton. It is assayed by ICP and some other tests. Not want mention openly.

 

[Ismael123]

As far as I can find there are no known precious metals near your shown location so if you are actually there make sure your assay is worth the paper it’s printed on.

Well judged, it's imported, not a local product.

 

[Yggdrasil]

It's been more than 10 ton. It is assayed by ICP and some other tests. Not want mention openly.

Only one thing with ores I want to mention.
XRF are all but useless for ores,
unless libraries, calibration and user is up to date.

10 tons seem too little to warrant any large investment.
To me it also seem to expensive to have it transported in native form.
Do you intend to process at site?

 

[Ismael123]

Only one thing with ores I want to mention.
XRF are all but useless for ores,
unless libraries, calibration and user is up to date.

10 tons seem too little to warrant any large investment.
To me it also seem to expensive to have it transported in native form.
Do you intend to process at site?

Xrf is big no for ores.
It has values that are worth to work after importing.
10 ton is enough to start may be. That's why no extra investment for smelting.

 

[Ismael123]

The ore has
Fe ,( 89prcnt)
s cu, as,zr, mn,cr, hg, sr, zn (all less than 0.1)

 

[Yggdrasil]

Xrf is big no for ores.
It has values that are worth to work after importing.
10 ton is enough to start may be. That's why no extra investment for smelting.

Building a small smelting furnace won't cost more than 100-300 USD.
It is a simple and easy thing to do.
Then you need a crucible and some gas, Propane/Butane and natural will all do.

 

[Ismael123]

Building a small smelting furnace won't cost more than 100-300 USD.
It is a simple and easy thing to do.
Then you need a crucible and some gas, Propane/Butane and natural will all do.

I think it will hard to get a tamprature up to iron melting point. Less tamp may work with flux but I am not assure about it. Propane is avail but rest is issue. No proper supply of crucibles as I never heard of large crucibles than few grams. So a lot work is yet required.

 

[Ismael123]

Naoh fusion works but gel production is issue.

 

[nickvc]

What are the ppm of precious metals in your ore are they worth chasing ?
This may be a case of recovering the iron first and then with that out the way you may have a simpler route to go for the values.

 

[jobinyt]

89% iron is freakishly high - calling into question both the analysis and calling it an ore. Sounds like the product of some process - or an error.

 

[Ismael123]

89% iron is freakishly high - calling into question both the analysis and calling it an ore. Sounds like the product of some process - or an error.

Yes. Iron not mean matalic iron. Analysis are done. I mentioned already, Tests are ICP and some more tests that I not want describe. And yes Fire assay also Done.

 

[Ismael123]

What are the ppm of precious metals in your ore are they worth chasing ?
This may be a case of recovering the iron first and then with that out the way you may have a simpler route to go for the values.

It's worth to process after been importing and paying taxes.
Try to remove iron first، the way we use, may be break some silicates and we lost some goodies that were a nightmare to saperate from iron filled waste.
Direct acid work is prohibited for this ore , basic then acid works well.

 

[Yggdrasil]

It's worth to process after been importing and paying taxes.
Try to remove iron first، the way we use, may be break some silicates and we lost some goodies that were a nightmare to saperate from iron filled waste.
Direct acid work is prohibited for this ore , basic then acid works well.

If you manage to import tons of ore from who knows where.
A Salamander crucible or equivalent should be no problem.
I'm confident you will find them in India or even Alibaba.

 

[Ismael123]

If you manage to import tons of ore from who knows where.
A Salamander crucible or equivalent should bo no problem.
I'm confident you will find them in India or even Alibaba.

It was cheap in buying quite cheap in some govt policies applying period.
Do not want spend a lot time to manage a complete new setup. Trade with India is banned because of some geopolitical issues. Hope it will open soon. Alibaba, and some international testing labs in country are manipulating, so avoiding from them.